/* 侧边导航 */
.side_box {
    width: 40px;
    border-left: 1px solid #e7e7e7;
    bottom: 0;
    position: fixed;
    right: 0;
    top: 0;
    z-index: 50;
    text-align: center;
    background: rgba(255, 255, 255, 0.8);
    .iconfont {
        display: block;
        width: 40px;
        height: 40px;
        box-sizing: border-box;
        padding: 10px 0;
        font-size: 18px;
        cursor: pointer;
    }
    .iconfont:hover {
        background: #f0f0f0;
    }
    li:nth-child(1) {
        margin-top: 200px;
    }
    li:nth-child(4) {
        margin-top: 150px;
    }
    li {
        position: relative;
    }
    .side_hint {
        position: absolute;
        right: 39px;
        min-width: 70px;
        padding: 0 5px;
        background: #fff;
        border-radius: 2px;
        box-shadow: 0 0 4px 0;
        text-align: center;
        margin-top: -40px;
        display: none;
        a {
            display: block;
            font-size: 12px;
            color: #333;
            line-height: 40px;
        }
    }
    .side_hint:hover {
        background: #f0f0f0;
    }
}
